Drill-guiding jig



Aug. 28, 1928. 1,682,150

c. SKLAREK DRILL GUIDING JIEG Filed Dec. :51. 1923 Patented Aug. 28, 1928.

UNITED STATES PATENT OFFICE.

CLIFFORD SKLAREK, OF CHICAGO, ILLINOIS, .ASSIGNOB TO INTERNATIONAL SPOT- LIGHT CORPORATION, A CORPORATION OF ILLINOIS.

DRILL-GUIDING JIG.

Application filed December 31, 1923. Serial No. 683,543.

This invention relates to improvements in drill guiding jigs.

As 18 Well known, more and more automobiles, particularly those of the closed body type, are being equipped with so-callcd spotlights, and many of the spotlights now on the market are so designed as to be operable from the inside of the closed body and preferably operable from a point closely :XtlJilcent the steering Wheel so as to require m1nimum effort on the part of the driver. Fur thermore, many of the commercial types of spotlights are so designed that they require attachment to the corner post of the body, thus necessitating drilling of a hole through the post in order to pass parts of the spotlight therethrough to permit operation from the interior of the body, the spotlight being permanently attached by suitable brackets, either on the exterior of the post or on both the exterior and interior.

The corner posts of closed types of automobiles, as is also well known, are of 1 regular and varying cross-section on the di 'erent types of cars. comparatively few cars carry spotlights as standard equlpment, with the result that it is the general connnerczal practiee to sell the spotlight through jobbers and dealers and to have the spotlights applied by the dealers, garage men and other service stations. Due to the varying and irregular cross sections of corner posts of difl'erent types of automobiles, extreme difliculty has heretofore been experienced in properly applying the spotlight so as to have the operating part thereof come at the dcsred pomt and, furthermore, it has been extremely dithcult heretofore to drill the necessary hole at the proper angle and insure the hole coming out on the interior side of the post at the intended point. As will also be appreciated by those skilled in the art, the cross-sectional areas of the post are relatively small and there is very little leeway permitted in drilling a hole if the glass and other parts of the car construction at the post are to be properly avoided in drilling the hole So far as I am aware, no satisfactory method or means has ever heretofore been devised by which accurate application of spotlights, under the commercial practice obtaining. has been poss'ble, and the results have been more or less guess-work. with many applications proving unsatisfactory to the owner of the car without any fault connected with the spotlight itself.

The object of my invention is to provide a very simple and inexpensive means for insuring the drilling or boring of a hole through pieces of irregular cross sections and variable sizes where accurate results are necessary and wherein such results are oh-. tainable by persons not specially skilled, the invention having special applicability for the mounting'of spotlights on automobiles and other automotive vehicles.

In the drawing forming a part of this specification, Figure 1 is an elevational view, partly in section, showing my device as applied to a corner post of a closed type of automobile, and ready to receive the drill; and Figure 2 is a top plan view of the same, showing the corner post in section.

In said drawing, 1 indicates a piece of work to be drilled, which, as shown, may be the corner post of the body of a motor \chicle, said post being generally of angular cross-section, and wherein it is desired to position a spotlight or other device. The comprises, broadly, a drill-receiving and guiding member A; a carr'cr or supporting member B; and bracket means for attaching the guiding member and carrier to the work to be drilled, these last mentioned means being indicated at C and 1), respectively.

The guiding member A is made preferably tubular so as to receive a drill Q thcrc through, the inner end being enlarged, as at 3, and the outer end having an enlargement or stop 4, which, in the present instance, is in the form of a nut. The first-mentioned end of the member A may be rounded, as at F, as it. is adapted to bear upon the work to be drilled, as shown in Figure 2.

The supporting member or carrier B. in the embodiment shown, is in the form of a yoke having substantially parallel arms. (5 and 7, one of said arms. as 6, having a transverse bore therein and through which the drill guiding member A adjustably slides. The member A may be locked in adjusted position by means of a thumb screw 8, or any other equivalent therefor. The free end of the arm 7 of the carrier is pre fcrably forked or bifurcated, the spaced prongs 9 of the fork extending laterally inwardly of the arm toward the arm 6.

The pairs of brackets C and D are swiveled to the adjacent opposed ends of the guiding member and fork prongs, respectively, so as to swing on axes perpendicular to and intersecting the axis of the member A, these brackets havin screwreceiving apertures 10 therethrougli for the temporary holding screws 11, whereby the brackets may be secured to the surfaces of the corner post.

1n carrying out my invention, the screwreceiving apertures of the brackets C and D will be located to exactly correspond with the screw-receiving openings of those brackets which are employed to permanently attach the spotlight to the post, so that, when my improved jig is used, as hereinafter described. the holes for the permanent fastening screws of the spotlight brackets are already provided and their relation with respect to the hole to receive the shaft or housing of the spotlight definitely redetermined. As will be understood by t ose skilled in the art, the brackets employed with my ji which locate the points of attachment o the spotlight bracket, may be modified or varied to correspond with different types of brackets of various spotlights on the market, without in any wise departing from the spirit of the invention.

In using my improved jig, I first preferably determine the exact center of the opening to be drilled on the interior of the post and, having determined this, secure the brackets D in proper position to correspond with the opening. In this connection, 1t will be observed that the brackets D are so mounted and designed that they can be applied to surfaces extending at any angle with respect to the steering wheel on the interior of the car. The brackets D having been secured as described, the carrier yoke is swung around the post and the guiding member A adjusted so that its inner rounded end 5 bears upon the opposite face of the post and with the axis of the guiding member A extending in the proper desired direction. The brackets C are then secured in position and the guiding member A clamped by the screw 8 with respect to the carrier. The drill is then next guided through the guide member A and the hole drilled With the absolute assurance that the hole will come out on the interior of the post at the desired point, the pivotal axes of the swiveled brackets C and D intersecting the axis, projected, of the guiding, member A, as hereinbefore indicated. By swivelly mounting the brackets C and D about axes located as described, I am enabled to attach the ig to anv shaped or sized post within the limits for which the tool is designed. As will be obvious, the improved jig may be used and accurate results obtained by any person skilled or unskilled and the same uniform results always obtained. As will also be evident, the drill will be properly guided even though it is started through the 0st at an angle to the outer surface thereof, Sanger of the point of the drill slipping or being deflected being entirely obviated.

Throughout the preceding description, I have referred to drills and drilling, but it is to be understood by those skilled in the art that these terms as so employed and as employed in the claims, are used generally to include not only what is technically known as drilling, but boring, and an means for perforatin a piece of work wit a hole.

Althougi I have herein shown and described what I now consider the preferred manner of carrying out my invention, the same is merely illustrative, and I contemplate all changes and modifications that come within the scope of the claims appended hereto.

I claim:

1. In a jig for guiding a drilling tool, the combination with a carrier yoke; of a drilling tool receiving and guiding member adjustably carried thereon and adapted to engage one face of the work; means swiveled on said yoke for detachable connection to the other face of the work; and means swiveled on the adjacent end of said guiding member for attachment to the first-mentioned face of the work.

2. In a jig for guiding a drilling tool, the combination with a carrier yoke having an end bifurcated and extending inwardly and laterally toward the other end; of a tubular member slidably carried by said yoke and movable to and from said bifurcated end, and adapted to engage one side of the Work; means swiveled on said last-mentioned memher for detachable connection to said face of the work; and means swiveled to each of the prongs of the bifurcated part of the yoke for detachable connection to the other side of said work.

3. In a jig of the character described, the combination with a carrier adapted to straddle the work to be drilled; of a drilling tool guide on one portion of said carrier and adapted to be disposed at one side of the work to be drilled; means for temporaril attaching said carrier at one side of the wor to be drilled; and means for temporarily attaching the carrier with respect to the other side of the work to be drilled, both of said means being pivotall adjustable with respect to the carrier a out axes intersecting the axis of the drilling tool guide member to thereby accommodate attachment of the jig to work of varying cross-section.

4. In a jig for drilling a hole at a predeterminad point and direction through a member of irregular cross section and to which is to be permanently applied securing means for a member passed through the drilled hole, the combination with inner and outer sets of temporary attaching brackets having temporary securing means corresponding in position and kind with the said permanent securing meansrof a carrier; a drilling tool guiding member supported by said carrier; means for pivotally mounting said temporary attaching brackets with respect to said carrier about axes intersecting the axis of the drilling tool guiding member; and means for adjusting the relative effective distance between said temporary attaching brackets.

5. In a jig of the character described, the combination with a carrier having extensions adapted to be disposed at opposite portions of a piece of work, one of said extensions being provided with guide means for the accommodation of a drill or boring too], said guide means being adapted for disposition at one side of the work, and the other of said extensions being provided with means adapted to engage the opposite side of the work; and means carried at the inner end of said guide for temporary attachment to that surface of the work to be drilled through which the tool enters.

6. In a jig of the character described, the combination with guide means, adapted for the reception of a drilling or boring tool; a bracket arranged for temporary attachment to that surface of the work to be drilled through which the tool enters; means conmeeting the inner end of said guide means with said bracket, said means permitting swinging of said guide means about its attached end to vary the angular disposition thereof with respect to the work; and a carrier having an extension adjustably connected to said guide means, and havingan extension disposed at the opposite side of the work and adapted to engage said work.

7. In a jig of the character described, in combination: a yoke having the arms thereof relatively widely spaced apart; aligned extensions at the ends of the arms of said yoke, said extensions projecting towards each other, and one of them being adjustable toward and from the other to thereb adapt the jig for operation on work of iiferent sizes and contours, one of said extensions having an opening extending lengthwise thereof to form the guide for a drill or boring tool, and provided at its inner end with means by which it may be attached to the face of the work to be drilled or bored, said two extensions determining the points of entrance and exit of the tool and said attaching means being provided with holes for locating points of attachment relative to the bored hole.

8. In a drill-guiding jig, in combination: a yoke having the arms thereof relatively widely spaced apart; aligned extensions at the ends of the arms of said yoke, said extensions projecting towards each other so as to indicate visually to the operator both the point of entrance and the point of exit of the hole to be bored and being adapted to engage opposite sides of the work with the axis of boring at any desired angle to the face of the work, and one of said extensions being adjustable towards and from the other extension to thereby adapt the jig for operation on objects of different sizes and contours, one of said extensions having an opening extending lengthwise thereof to form the guide for a borin tool, said two extensions determining visua ly the points of entrance and exit of the tool.

In Witness that I claim the foregoing I have hereunto subscribed my name this 21st day of December, 1923.

CLIFFORD SKLAREK.

DISCLAIMER 1,682,150.-C'lifl0rd Sklarek, Chicago, Ill. DRILL-GUIDING JIG. Patent dated August 28, 1928. Spotlight Corporation.

Disclaimer filed June 15, 1932, by the assignee, International Hereby enters this disclaimer to those claims in said specification which are in the following words, to-wit:

5. In a' jig of the character described, the combination with a carrier having extensions adapted to be disposed at opposite portions of a piece of work, one of said extensions being provided with guide means for the accommodation of a drill or boring tool, sald guide means being adapted for disposition at one side of the work, and the other of said extensions side of the work; and

being provided with means adapted to engage the opposite means carried at the inner end of said guide for temporary attachment to that surface of the work to be drilled through which the tool enters. 7. In a ]1g of the character described, in combination: a yoke having the arms thereof relatively said Widely spaced apart; aligned extensions at the ends of the arms of oke, and extensions projecting towards each other, and one of them being adjusta 1e toward and from the other to thereby adapt the jig for operation on work of different sizes and contours,

one of said extensions havlng an opening extending lengthwise thereof to form the guide for a drill or borin tool, and provided at its inner end with means by which it may be attached to t e face of the work to be drilled or bored, said two extensions determining the points of entrance and exit of the tool and said attaching)means being provided with holes for locating points of attachment relative to the [Ofic'ial Gazette July 6, 19849.]

ored hole.

drilled hole, the combination with inner and outer sets of temporary attaching brackets having temporary securing means corresponding in position and kind with the said permanent securing meansrof a carrier; a drilling tool guiding member supported by said carrier; means for pivotally mounting said temporary attaching brackets with respect to said carrier about axes intersecting the axis of the drilling tool guiding member; and means for adjusting the relative effective distance between said temporary attaching brackets.

5. In a jig of the character described, the combination with a carrier having extensions adapted to be disposed at opposite portions of a piece of work, one of said extensions being provided with guide means for the accommodation of a drill or boring too], said guide means being adapted for disposition at one side of the work, and the other of said extensions being provided with means adapted to engage the opposite side of the work; and means carried at the inner end of said guide for temporary attachment to that surface of the work to be drilled through which the tool enters.

6. In a jig of the character described, the combination with guide means, adapted for the reception of a drilling or boring tool; a bracket arranged for temporary attachment to that surface of the work to be drilled through which the tool enters; means conmeeting the inner end of said guide means with said bracket, said means permitting swinging of said guide means about its attached end to vary the angular disposition thereof with respect to the work; and a carrier having an extension adjustably connected to said guide means, and havingan extension disposed at the opposite side of the work and adapted to engage said work.

7. In a jig of the character described, in combination: a yoke having the arms thereof relatively widely spaced apart; aligned extensions at the ends of the arms of said yoke, said extensions projecting towards each other, and one of them being adjustable toward and from the other to thereb adapt the jig for operation on work of iiferent sizes and contours, one of said extensions having an opening extending lengthwise thereof to form the guide for a drill or boring tool, and provided at its inner end with means by which it may be attached to the face of the work to be drilled or bored, said two extensions determining the points of entrance and exit of the tool and said attaching means being provided with holes for locating points of attachment relative to the bored hole.

8. In a drill-guiding jig, in combination: a yoke having the arms thereof relatively widely spaced apart; aligned extensions at the ends of the arms of said yoke, said extensions projecting towards each other so as to indicate visually to the operator both the point of entrance and the point of exit of the hole to be bored and being adapted to engage opposite sides of the work with the axis of boring at any desired angle to the face of the work, and one of said extensions being adjustable towards and from the other extension to thereby adapt the jig for operation on objects of different sizes and contours, one of said extensions having an opening extending lengthwise thereof to form the guide for a borin tool, said two extensions determining visua ly the points of entrance and exit of the tool.

In Witness that I claim the foregoing I have hereunto subscribed my name this 21st day of December, 1923.

CLIFFORD SKLAREK.

DISCLAIMER 1,682,150.-C'lifl0rd Sklarek, Chicago, Ill. DRILL-GUIDING JIG. Patent dated August 28, 1928. Spotlight Corporation.

Disclaimer filed June 15, 1932, by the assignee, International Hereby enters this disclaimer to those claims in said specification which are in the following words, to-wit:

5. In a' jig of the character described, the combination with a carrier having extensions adapted to be disposed at opposite portions of a piece of work, one of said extensions being provided with guide means for the accommodation of a drill or boring tool, sald guide means being adapted for disposition at one side of the work, and the other of said extensions side of the work; and

being provided with means adapted to engage the opposite means carried at the inner end of said guide for temporary attachment to that surface of the work to be drilled through which the tool enters. 7. In a ]1g of the character described, in combination: a yoke having the arms thereof relatively said Widely spaced apart; aligned extensions at the ends of the arms of oke, and extensions projecting towards each other, and one of them being adjusta 1e toward and from the other to thereby adapt the jig for operation on work of different sizes and contours,

one of said extensions havlng an opening extending lengthwise thereof to form the guide for a drill or borin tool, and provided at its inner end with means by which it may be attached to t e face of the work to be drilled or bored, said two extensions determining the points of entrance and exit of the tool and said attaching)means being provided with holes for locating points of attachment relative to the [Ofic'ial Gazette July 6, 19849.]

ored hole. 

